公开(公告)号：EP1929503A4

公开(公告)日：2009-01-14

申请号：EP06836140

申请日：2006-09-25

申请人： OSRAM SYLVANIA INC

发明人： DUTTA ARUNAVA ,  DULLEA LEONARD V ,  FAN CHEN WEN ,  TETREAULT ALINE ,  DESBIENS NICOLAS

IPC分类号： H01J1/62 ,  C09K11/70 ,  H01J63/04 ,  H05B33/20

CPC分类号： C09K11/7777 ,  C09K11/7721 ,  C09K11/774 ,  H01J61/35 ,  H01J61/44 ,  H01J61/70

摘要： There are provided UV-emitting phosphors, a phosphor blend and a lamp containing same. The blend is comprised of a mixture of a YPO4:Ce phosphor and a LaPO4:Ce phosphor. The YPO4:Ce and LaPO4:Ce phosphors may be surface treated to increase their isoelectric point to enhance lamp stabilization. A third phosphor having an isoelectric point that is at least 3 pH units higher than either of the YPO4:Ce and LaPO4:Ce phosphors also may be added to improve lamp stabilization time. The phosphor blend is lead-free and lamps containing the blend provide equivalent performance to state-of-the-art tanning lamps.

公开(公告)号：EP1588395A4

公开(公告)日：2008-08-13

申请号：EP04703610

申请日：2004-01-20

申请人： OSRAM SYLVANIA INC

发明人： DUTTA ARUNAVA ,  TETREAULT ALINE ,  DULLEA LEONARD V ,  HORION PASCAL

IPC分类号： C09K11/02 ,  C09K11/66 ,  C09K11/08 ,  C09K11/59 ,  C09K11/77 ,  C09K11/78 ,  C09K11/80 ,  H01J1/00 ,  H01J61/44

CPC分类号： H01J61/44 ,  C09K11/666 ,  C09K11/7721 ,  C09K11/774 ,  C09K11/7777

摘要： A UV-emitting phosphor blend is provided which comprises a mixture of at least two UVA-emitting phosphors selected from SrB4O7:Eu, YPO4:Ce, and BaSi2O5:Pb wherein the sum of the weight percentages of the phosphors in the mixture equals 100%. The phosphor blend may additionally contain an amount of a UVB-emitting phosphor in an amount from 0 to 12 wt.% of the mixture. Tanning lamps containing these blends exhibit increases in initial UVA output and UVA maintenance.